221096980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{850373}}^1$

素因数の和:850395

約数の個数: 24

約数和(自身を含む): 500019912

約数和(自身を除く): 278922932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 850373, 1700746, 3401492, 4251865, 8503730, 11054849, 17007460, 22109698, 44219396, 55274245, 110548490, 221096980]

約数ペア:

[(1, 221096980), (2, 110548490), (4, 55274245), (5, 44219396), (10, 22109698), (13, 17007460), (20, 11054849), (26, 8503730), (52, 4251865), (65, 3401492), (130, 1700746), (260, 850373)]